Purpose:

The Purpose of this project was to create a working scale model rocket from materials one might find around there house or garage.

Materials:

  • Old binder plastic used to make the fins and engine mounts
  • Plastic bag for parachute
  • White hollow tube used for fuselage
  • Pink foam used for nose cone
  • Drinking straw
  • Hot glue gun
  • Packing tape
  • hot glue sticks
  • Krazy brand crazy glue
  • Nylon thread
  • Elastic
  • Brown Spray paint
  • Launchpad and ignition system
  • Paper clip
  • A-96 Model rocket engine
  • C-96 Model rocket engine
  • Dime roller

Procedure:

Assembly:

1. Find and cut a 1/2 meter hollow tube in half.
2. Draw an outline of a fin on a piece of plastic (roughly 1/3 the size of your fuselage).
3. Cut out the fin.
4. Repeat steps 2 and 3 for two more fins.
5. Separate the bottom half of the tube into thirds.
6. Create 3 different grooves on the surface of the tube.
7. Fill the grooves with crazy glue.
8. Place the fin in the groove and hold it straight until the glue drys.
9. After the crazy glue has dried use hot glue and hot glue along the sides of the fin.
10. Repeat steps 7 to 9 for the other two fins.
11. Let the rocket dry for at least 1 hour.
12. Find a plastic bag and draw a circle on it that is at least as wide as your fuselage.
13. In the center of the circle cut out a loonie size hole.
14. Poke 8 holes in the circumference.
15. Attach a piece of sting to each hole.
16. Tie the ends of the strings together ( and vola you have a parachute).
17. find a piece of foam and mold it into a nose cone using sand paper.
18.Take an elastic (e.g. from a pair of boxers) and hot glue about 1/2 inch from the top of your fuselage.
19. Hot glue the other side of the elastic to your nose cone then tie the Parachute to the elastic about 2 inches from the nose cone.
20. Take a dime roller and slide a A rocket engine into it.
21. Take a paper clip and unbend it so it stretches the length of the engine, make it so it stretches over each end on the engine, then tape it in place.
22. Trace around your rocket
23. Cut out the circle and place your engine in the center, and trace it.
24. Cut out the circle created but your engine.
25. Repeat steps 23 and 24 for the other engine mount.
26. place the two ring you created on your engine, then slide your engine with the mounts on it into your rocket.
27. glue your engine mount in place and let dry for 2 hours.
28. Decorate and paint.
29. Let paint fry overnight

Launch:

1. Insert engine into engine mount on rocket.
2. Insert engine igniter into engine then plug it.
3. Put rocket on the launchpad
4. Attach alligator clips to either lead or the igniter.
5. Launch when ready.

Data and Observations:

1st trial
NO
YES
Takeoff Success

$
Controlled Takeoff

$
Recovery System Deploys

$
Broken Parts
$

Time up = 5.34 seconds
Time down = 12.89 seconds
Angle = 42 degrees

Analysis:
Height:
Tan(42) = H/A
H = A x Tan(42)
H = 50 x .9004040443
H = 45 meters
The Rocket went 45 meters high.

Rocket.png

Average Velocity (upwards)
D = 45 m
T = 5.34 s
V = unknown
V = D/T
V = 45/5.34
V = 8.42 m/s
The Rockets average velocity going up was 8.42 m/s.
Average Velocity (downwards)
D = 45 m
T = 12.89 s
V = Unknown
V = D/T
V = 45/12.89
V = 3.49 m/s
The rockets average velocity going down was 3.49 m/s.

Conclusion:

The Purpose or this Project was to build a successful model rocket. From this experiment we have decided that the experiment was a success. We launched are rocket 4 times( 2 with school and 2 without school) without it it breaking, we could have launched it again but we unfortunately lost it. As side from losing the rocket we believe that the project was a complete success.

Source of error:

The most likely one is that the rocket launcher was not straight up and down. Human error (e.g. timing and angle measurement)


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